Temt office



1.1. 11111111111. TURRET LATHE.

APPLICATION FILED APR..B, 1919.

11816,@751 Pandsept. 16,1919.

Fig. Il@

I 1:1 DL O G 0 11 .zi if@ .11k /l la I 12' 13 2E' lf'zrg.

l'iwenor' 6 17 2W' .Llama-Bark@ 21 by M/TTQ 1 l un PLANOGIIAPH Co., wAsluNn'roN, 1x c.

En sfrnrns PATENT f conn J. Banken, or murieron smears, MASSACHUSETTS. 1

runner-narnia;

speciatitnof Letters. raient,

Patented-Sept.16,1919.

applicationlefrapru s, raie;` 'semina asgsee.

the bed :hasbecomeworn from constant use.

Heretofore in machines `of this class the bed will become worn. from` the `continuous dropping ot metalI pieces thereon `and fas a consequence the turret `support will? be so loosely fittedas to make the machine* 1noperative or at'least put in such a" conthereon. y

To overcomeythis `serious objection, de-

pressionsaremade in the top ofthe bed in which are adjustably mounted members on which the support may rest when the bed has become Worn. l M

The inventionconsists incertain novel features of constructionand arrangement of parts which will be fully understood by reference to For the purpose of illustrating the invention, one preferred form thereof is illus trated in the drawings, this form having been found to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which the invention consists can be variously arranged and organized, and that the invention 1s not limited to the precise arrangement and organization of the instrumentalities as herein shown and described, ex-

cept as required by the scope of the apended claims.

Of the drawings:

Figure 1 represents a plan view of a portion of a turret lathe embodying the features of the present invention.

Fig. 2 represents a vertical section on line 2, 2, on Fig. 1, and y Fig. 3 represents a sectional detail on line 3, 3, on Fig. 2.

Similar characters indicate like parts throughout the several gures of the dra-w* ings.

thel description of'the drawings and to the claims to be hereinafter givenx `In the drawiiigs, 10 is-fa portionof'the bed." of `a turret `lathe which `may be of `any well-known construction.

Super-imposed upon thebed 10= is a supiport lil'fwhich may be `movedvl lengthwise" of `the lfbed 101 and clamped in adjusted' position `as `usualfin machines ot this character.

The support 11 is rovided withaguide- `plates/112,` theinner e ges of `which entend into grooves 123 in the side" `walls of the slide 141s-V on which the usual* turret -15 is mounted.

Bymeans of a shaftll, reciprocatory `movement is imparted to the slide ltby `any well-irnow-n means;`

lits-themachine as. thus far described forms no part of the present invention the kp artshereinbefore" mentioned `are not shown p y `or described ini detail. 1 dition that perfect work cannot be done l ilihef presentinvention is` limited `to the devices "for preventing vertical movement of `upon the forward end ofthe support 11 will "wear-away the upperface thereof sotthat the forward `end^of`the slide will `not be gwen the. proper support and as a consequence this `slide twill" have sufcient "vertical `rnfnvement to prevent accurate work being performed upon the lathe..

To prevent this rattling and vibratory movement of the slide, depressions 17 are formed in the upper face of the support 11, said support also having a chamber or slot 18 beneath said depressions 17.

In the depressions 17 are mounted the plates 19 having cylindrical shanks 2O extending downwardly therefrom through the chamber or slot 18.

The lower end of the Shanks 20 are threaded to nuts 21 within the slot or chamber 18, these nuts 21 being provided with aI plurality of radial holes 22 adapted 'to receive the end of a pin or other tool by which said nuts 21 may be turned to give vertical adjustment to the plates 19.

The slot or chamber 18 is open at the forward end to provide a means whereby the operating pin or tool may be inserted into the holes 22.

The support 11 is also provided with a set screw 23 for each shank 20 and when the plates 19 have been properly adjusted, these fes set screws will be forced into contact with said Shanks and locked by means of the nuts 24, 25.

When the machine is new, the plates 19 will be'positioned in the depressions 17 and the slide 14 will rest upon the upper face of the support 11.

As soon, however, 'as the support 11 becomes so worn that the slide 14 will not move in perfect alinement, the plates 19 are moved upwardly suiiicient to rectify the alinement andthe machine will then operate as well as when rst installed.

Many machines become so worn that they `are practically useless and are obliged to be .placed in the junk pile but by means of this simple device, their use may be continued for many years.

The device may be installed in new machines to be sold or it may be applied to old machines at any time when they begin to operate imperfectly.

It is believed that the operation and many advantages ofthe invention will be readily understood without further description.

Having thus described my invention, I claim:

1. In a, device of the class described, the combination of a support; a tool-supporting member slidable in said support; vertical members inthe forward end of said support; and means for imparting vertical movement thereto.

2. In a device of the class described, the combination of a support; a slide thereon; a turret on said slide; vertical members in the forward end of the support; and means for imparting vertical movement thereto.

i Copies of this patent may be obtainedfor five cents each, by addressing the 3. In a device of the class described, the combination of a support; a slide thereon; a turret on said slide; vertical members in the forward end of the support; means for imparting vertical movement thereto; and means for locking said members in adjusted position.

4. In a device of the class described, the combination of a support; a slide thereon; a turret on said slide; vertical threaded members in the forward end of the support; and nuts coacting with said threaded members.

5. In a device of the class described, the combination of a support having depressions in the upper face thereof and an open ended slot beneath said depressions; a turret supporting slide on said support; plates in said depressions having downwardly extending threaded shanks; and nuts on said shanks positioned in said slot and prevented from moving endwise by the walls thereof.

6. In a device of the class described, the combination of a support having depressions in the upper face thereof and an open ended slot beneath said depressions; a turret-supporting slide on said support; plates in said depressions having downwardly extending threaded Shanks; nuts on said Shanks positioned in said slot and prevented from moving endwise by the walls thereof; and means for locking said shank in adjusted vertical position.

Signed by me at 4 Post Oiiice Square, Boston, Mass., this 7th day of April, 1919.

J OHN J. BARKER.

Witnesses:

WALTER E. LOMBARD, NATHAN C. LOMBARD.

Commissioner of Patents,

Washington, D. 0; 

